Compsn. of releasing heat after contacting air

A compound and heat release technology, applied in the field of heat release compound, can solve the problems of short heat release time, large temperature fluctuation, concentrated heat release, etc., and achieve the effect of fast heat release rate

Inactive Publication Date: 2006-09-20
刘永录
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many chemical heat release methods for health care in China. The principles are as follows: 1. NaAc supersaturated solution is excited by the excitation sheet and crystallizes to release heat. Concentrated release, short heat release time, large temperature fluctuations, uncontrollable
2. Iron powder heating: there are public patents on using iron powder heating in China, such as CN03129979.2 "A Heating Bag"; CN200410006553.4 "A Heating Bag"; "Thermal Heater", etc., using materials such as iron powder, water, activated carbon, inorganic salts, etc. These patents are theoretically feasible, but in the actual heating process, the water will evaporate quickly, thereby reducing or losing the heating capacity, and it is not easy to make products

Method used

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  • Compsn. of releasing heat after contacting air

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Reagents: Zinc powder 50g, activated carbon 15g, ionic liquid [BMIM][BF 4 ] (chemical name is 1-methyl-3-butylimidazolium tetrafluoroborate) appropriate amount.

[0029] Mix zinc powder and activated carbon evenly, add ionic liquid and stir to make a wet paste to obtain a heat-generating compound, wrap the compound with nylon silk cloth, put a thermometer in the center, and observe the temperature change. Results: The temperature rose rapidly to 180°C and lasted for more than 30 minutes.

Embodiment 2

[0031] Reagents: urea 30g, acetamide 40g, sodium bromide 20g, zinc powder 50g, activated carbon 15g.

[0032] Weigh urea and acetamide sodium bromide according to the amount, mix and heat to melt to obtain low-temperature eutectic salt. Mix activated carbon and zinc powder in equal volumes, add the above-mentioned low-temperature eutectic salt, stir to form a wet paste to obtain a heat-generating compound, wrap the compound with nylon silk cloth, put a thermometer in the center, and observe the temperature change. Results: The temperature rose rapidly to 150°C and lasted for more than 30 minutes.

Embodiment 3

[0034] Reagents: urea 30g, propionamide 40g, sodium bromide 20g, zinc powder 50g, activated carbon 15g.

[0035] Weigh urea and propionamide sodium bromide according to the amount, mix them and stir in a container to obtain a room temperature ionic liquid (room temperature eutectic salt). Mix activated carbon and zinc powder, add the above-mentioned ionic liquid at room temperature, stir to form a wet paste to obtain a heat-generating compound, wrap the compound with nylon silk cloth, put a thermometer in the center, and observe the temperature change. Results: The temperature rose rapidly to 150°C and lasted for more than 30 minutes.

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Abstract

This invention relates to a composite that can release heat when contacting the air. The composite is composed of: metal powders that can release heat when reacting with the air, electronic conductive materials and ionic conductive materials at a volume ratio of 2~8:2~8:1~8. The composite can exist in the form of powder, particle or cream. The metal can be reduced Fe, Zn, or Mg alloy or Al alloy that can form metal-air battery in experimental conditions. This invention has such characteristics as easy usage, simple process, and controllable heat release. The composite can be widely used as mounting materials for heat-release rubber hard plaster or balck plaster, heat-release medical products for hot fomrntation, and other industrial products.

Description

technical field [0001] The invention relates to the technical field of heating materials that undergo electrochemical reactions during use, in particular to a heating material that utilizes metal and air (O 2 ) There is a potential difference between them, and a short-circuit current is generated after contact and a heat-releasing compound that generates heat. Background technique [0002] There are many chemical heat release methods for health care in China. The principles are as follows: 1. NaAc supersaturated solution is excited by the excitation sheet and then crystallizes to release heat. The release is concentrated, the heat release time is short, the temperature fluctuates greatly, and it cannot be controlled. 2. Iron powder heating: there are public patents on using iron powder heating in China, such as CN03129979.2 "A Heating Bag"; CN200410006553.4 "A Heating Bag"; "Thermal Heater", etc., use iron powder, water, activated carbon, inorganic salt and other materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/18
Inventor 刘永录赵引娣
Owner 刘永录
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